2 years ago

What is the value of the algebraic expression x=1/2, y=1, and z=2? 6x(y2z)

Mathematics

1 answer:

alexandr1967 [171]2 years ago

5 0

Is 12 I think so !! try it

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Which algebraic expression represents the phrase "seven more than half of a number"?

Vika [28.1K]

Answer:

1/2x +7

Step-by-step explanation:

Let the unknown number be x

We want 1/2 of the number

1/2x

Then 7 more than (add)

1/2x +7

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2 years ago

A satellite dish shaped like a paraboloid, has diameter 2.4 ft and depth 0.9 ft. If the receiver is placed at the focus, how far

GREYUIT [131]

Answer:

0.4

Step-by-step explanation:

x= $\frac{d}{2} =\frac{2.4}{2} =1.2\\$

$p=\frac{x^{2} }{4y}$

$p=\frac{(1.2)^{2} }{4(0.9)}$

p=0.4

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2 years ago

How many distinct 9-letter words starting with “i” can be formed from the word “committee”?

Nikitich [7]

We have already chosen "i" to be the first letter. This means that we still have 8 letters that we can use as the second letter. Once that letter is chosen, we still have 7 letters that we can use as the third letter, and so on. This means we have

$8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 = 8!$

ways of choosing the remaining 8 letters.

<u>However,</u> some of the 8 available letters are equal: we have 2 m's, 2 t's and 2 e's. This means that we overcounted the number of words on the reasoning above. We can correct the counting by dividing three times by 2!, one time for each of the repeated letters.

The final answer is

$\dfrac{8!}{2! \times 2! \times 2!} = \dfrac{40320}{8} = 5040.$

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2 years ago

Sakura speaks 150150150 words per minute on average in Hungarian, and 190190190 words per minute on average in Polish. She once

Vinil7 [7]

Hello

The answer is <span> 3 minutes speaking Polish and 2 minutes speaking Hungarian.

Have a nice day</span>

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2 years ago

The ratio of boys to girls at a school dance is shown in the graph. Which equation has a greater rate of change than the rate sh

Marianna [84]

Answer:

y = 2/3x

Step-by-step explanation:

The graph shows a rise of 1 for a run of 4, so its slope is ...

rise/run = 1/4

The equation with a greater rate of change is the one with an x-coefficient greater than 1/4. That one is ...

y = 2/3x

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2 years ago